Premium Thread Rolling Screws with a Phillips Pan Head in solid steel, featuring a corrosion-resistant black oxide finish and waxed threads for smooth driving and consistent lubrication. This Tri-Lobe 48-2 screw is designed as a Plastite screws alternative, delivering strong, precise fastening for plastics and light metals. Sized at #4-20 x 1/4, it’s ideal for compact assemblies where form-in-place threads are preferred.